User DOs and DON'Ts

• DO read the ​Student Introduction to DeterLab if you are a student.
• DON'T use control network unless absolutely necessary. This means:
  • DON'T use full node names such as ping node1.YourExperiment.YourProject
    • DO use short names such as ping node1. This ensures that traffic goes over experimental network.
  • DON'T generate traffic to 192.168.x.x network
    • DO use addresses of experimental interfaces. These can be from any IPv4 address range, depending on your NS file, but are often from 10.10.x.x address range.
• DON'T store large files in your home or project directory unless you need them in multiple experiment instances.
  • DO store these files locally on a node, e.g., in /tmp folder. If you need more disk space you can mount more by doing

    sudo /usr/local/etc/emulab/mkextrafs.pl /mnt
    user=`whoami`
    sudo chown $user /mnt/local
    

Traffic from experimental nodes to/from your home directory also travels over the control network (read more about this in the next section). To minimize this load please refrain from performing large (> 500 MB) or frequent (< 10 s) reads/writes that involve your experimental nodes and your home directory, unless absolutely necessary. If you need to log something, use a local directory on an experimental node, such as /tmp, and transfer the logs to your home directory before you swap out to save them.